diff options
| author | Max Kellermann <max.kellermann@ionos.com> | 2026-02-24 16:26:57 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2026-03-09 14:34:40 +0300 |
| commit | 040d159a45ded7f33201421a81df0aa2a86e5a0b (patch) | |
| tree | 01ded86871a0098f6ca6888609fb98d8ce7de8f6 | |
| parent | 43323a5934b660afae687e8e4e95ac328615a5c4 (diff) | |
| download | linux-040d159a45ded7f33201421a81df0aa2a86e5a0b.tar.xz | |
ceph: fix memory leaks in ceph_mdsc_build_path()
Add __putname() calls to error code paths that did not free the "path"
pointer obtained by __getname(). If ownership of this pointer is not
passed to the caller via path_info.path, the function must free it
before returning.
Cc: stable@vger.kernel.org
Fixes: 3fd945a79e14 ("ceph: encode encrypted name in ceph_mdsc_build_path and dentry release")
Fixes: 550f7ca98ee0 ("ceph: give up on paths longer than PATH_MAX")
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| -rw-r--r-- | fs/ceph/mds_client.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 23b6d00643c9..b1746273f186 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2768,6 +2768,7 @@ retry: if (ret < 0) { dput(parent); dput(cur); + __putname(path); return ERR_PTR(ret); } @@ -2777,6 +2778,7 @@ retry: if (len < 0) { dput(parent); dput(cur); + __putname(path); return ERR_PTR(len); } } @@ -2813,6 +2815,7 @@ retry: * cannot ever succeed. Creating paths that long is * possible with Ceph, but Linux cannot use them. */ + __putname(path); return ERR_PTR(-ENAMETOOLONG); } |